Home / 13,863.43-19,134.86-7,896.57

Finding the Fourth Proportional to 13,863.43, 19,134.86 and 7,896.57

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Solution

The fourth proportional to 13,863.43, 19,134.86 and 7,896.57 is: 10,899.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,863.43 : 19,134.86 = 7,896.57 : x
  2. Step 2: Convert to fraction form
    13,863.43/19,134.86 = 7,896.57/x
  3. Step 3: Cross multiply
    13,863.43x = 19,134.86 × 7,896.57
  4. Step 4: Simplify right side
    13,863.43x = 151,099,761.43
  5. Step 5: Solve for x
    x = 151,099,761.43/13,863.43
  6. Step 6: Final answer
    x = 10,899.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.